ReLive stopping after a few minutes?

I am trying to stream Fortnite and OBS is too heavy for an i3 so I want to use relive. I started a test stream in youtube at 1080p, 30fps, 5mbps, 160kbps audio quality in my RX480 4GB. The live started well but after a minute, youtube stopped receiving enough information. I know it's not my internet as the internet speed test returns 10mbps upload. When connection returns, the livestream is a static black background and the audio still works. Other problem is that the Relive menu sometimes refuses to show and makes me unable to move my cursor until I press the menu hotkey again. Thanks in advance.